Patent US 5,579,031

A process and related apparatus for producing at least two matched color displays of a digital image using two different display devices, comprising using an adaptor to convert the digital information representing the image to digital information such that the displayed image as a result of this converted digital information on one of the devices, appears the same as the image displayed on the other to an average observer when viewed under similar viewing conditions. The adaptor contains a transform LUT constructed using display device modeling to generate corresponding values to preselected input digital image values to map the input color values into the color space of the display device so that image matching is achieved. A output value signals received from a first model are compared to output value signals received from a second model to obtain an error signal used to modify the input color values to the second model, and the modified color values are then used to create the transform LUT for matching the color display of the second display device with that of the first device.